I received one of these on limited release.
Unfortunately it was a short lived affair - couldn't maintain sync on VDSL for more than 24hrs, errors a plenty (and was banded shortly after fitting). It just stalled when I tried to upload a firmware image, but that only contained a WiFi config change anyway.
I may have been unlucky and the unit was faulty, but I'd tread cautiously if you're considering picking one of these up.
I'm back on the now discontinued 8800AXL and my connection is once again rock solid.